DE69737129T2 - Verfahren und Vorrichtung zur Bildqualitätskontrolle - Google Patents
Verfahren und Vorrichtung zur Bildqualitätskontrolle Download PDFInfo
- Publication number
- DE69737129T2 DE69737129T2 DE1997637129 DE69737129T DE69737129T2 DE 69737129 T2 DE69737129 T2 DE 69737129T2 DE 1997637129 DE1997637129 DE 1997637129 DE 69737129 T DE69737129 T DE 69737129T DE 69737129 T2 DE69737129 T2 DE 69737129T2
- Authority
- DE
- Germany
- Prior art keywords
- image
- image quality
- property
- input
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003908 quality control method Methods 0.000 title claims description 78
- 238000000034 method Methods 0.000 title claims description 61
- 230000006866 deterioration Effects 0.000 claims description 70
- 238000011156 evaluation Methods 0.000 claims description 56
- 238000007906 compression Methods 0.000 claims description 53
- 230000006835 compression Effects 0.000 claims description 53
- 230000015556 catabolic process Effects 0.000 claims description 10
- 238000006731 degradation reaction Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 230000002441 reversible effect Effects 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 5
- 230000000694 effects Effects 0.000 description 255
- 238000013139 quantization Methods 0.000 description 131
- 239000011159 matrix material Substances 0.000 description 59
- 238000010586 diagram Methods 0.000 description 46
- 238000004364 calculation method Methods 0.000 description 38
- 238000010276 construction Methods 0.000 description 25
- 238000006243 chemical reaction Methods 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 9
- 238000010191 image analysis Methods 0.000 description 9
- 230000006870 function Effects 0.000 description 8
- 238000005259 measurement Methods 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 7
- 238000001514 detection method Methods 0.000 description 7
- 241000255925 Diptera Species 0.000 description 5
- 238000011002 quantification Methods 0.000 description 5
- 230000009466 transformation Effects 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000003708 edge detection Methods 0.000 description 4
- 238000013441 quality evaluation Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000013144 data compression Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 description 2
- 230000001131 transforming effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000007363 regulatory process Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/124—Quantisation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
- H04N19/124—Quantisation
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/15—Data rate or code amount at the encoder output by monitoring actual compressed data size at the memory before deciding storage at the transmission buffer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/154—Measured or subjectively estimated visual quality after decoding, e.g. measurement of distortion
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
- H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
- H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
- H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
- H04N19/146—Data rate or code amount at the encoder output
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Algebra (AREA)
- Health & Medical Sciences (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Pure & Applied Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Record Information Processing For Printing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22913896A JP3116994B2 (ja) | 1996-08-29 | 1996-08-29 | 画質予測装置および方法ならびに画質制御装置および方法 |
| JP22913896 | 1996-08-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE69737129D1 DE69737129D1 (de) | 2007-02-01 |
| DE69737129T2 true DE69737129T2 (de) | 2007-04-19 |
Family
ID=16887366
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1997637129 Expired - Lifetime DE69737129T2 (de) | 1996-08-29 | 1997-08-20 | Verfahren und Vorrichtung zur Bildqualitätskontrolle |
| DE1997631344 Expired - Lifetime DE69731344T2 (de) | 1996-08-29 | 1997-08-20 | Verfahren und Vorrichtung zur Bildqualitätsvorhersage und -kontrolle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1997631344 Expired - Lifetime DE69731344T2 (de) | 1996-08-29 | 1997-08-20 | Verfahren und Vorrichtung zur Bildqualitätsvorhersage und -kontrolle |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5991458A (ja) |
| EP (2) | EP1341384B1 (ja) |
| JP (1) | JP3116994B2 (ja) |
| DE (2) | DE69737129T2 (ja) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3721716B2 (ja) * | 1997-06-02 | 2005-11-30 | 富士ゼロックス株式会社 | 画像情報符号化装置および方法 |
| US6363162B1 (en) * | 1998-03-05 | 2002-03-26 | Ncr Corporation | System and process for assessing the quality of a signature within a binary image |
| GB9805035D0 (en) * | 1998-03-10 | 1998-05-06 | Nds Ltd | Estimating the difference in picture quality between two versions of a video signal |
| US6735341B1 (en) * | 1998-06-18 | 2004-05-11 | Minolta Co., Ltd. | Image processing device and method and recording medium for recording image processing program for same |
| JP3738574B2 (ja) | 1998-09-18 | 2006-01-25 | 富士ゼロックス株式会社 | 画像情報符号化装置 |
| JP4519323B2 (ja) * | 1999-02-11 | 2010-08-04 | ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー | ビデオ信号品質の解析 |
| FR2790852B1 (fr) * | 1999-03-08 | 2001-04-20 | Thomson Multimedia Sa | Procede d'evaluation d'images codees, dispositif mettant en oeuvre le procede et utilisation du dispositif et procede |
| US6493023B1 (en) * | 1999-03-12 | 2002-12-10 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method and apparatus for evaluating the visual quality of processed digital video sequences |
| JP4505701B2 (ja) * | 2000-10-31 | 2010-07-21 | ソニー株式会社 | 情報処理装置および情報処理方法、プログラム記録媒体 |
| KR100904329B1 (ko) * | 2001-03-28 | 2009-06-23 | 소니 가부시끼 가이샤 | 화상 처리 장치, 화상 처리 방법, 및 기록 매체 |
| FR2823049B1 (fr) * | 2001-03-29 | 2003-06-06 | Nextream Sa | Procede et dispositif de controle de la qualite de donnees video |
| US20030035581A1 (en) * | 2001-08-13 | 2003-02-20 | Nokia Mobile Phones, Ltd. | Method and system for measuring perceptual distortion in images |
| US7024045B2 (en) * | 2001-08-21 | 2006-04-04 | Sun Microsystems, Inc. | Dynamic bandwidth adaptive image compression/decompression scheme |
| US20030161399A1 (en) * | 2002-02-22 | 2003-08-28 | Koninklijke Philips Electronics N.V. | Multi-layer composite objective image quality metric |
| US7038710B2 (en) | 2002-07-17 | 2006-05-02 | Koninklijke Philips Electronics, N.V. | Method and apparatus for measuring the quality of video data |
| JP3952459B2 (ja) * | 2002-11-15 | 2007-08-01 | 株式会社リコー | 画像処理装置、プログラム、記憶媒体及び画像処理方法 |
| GB0228556D0 (en) | 2002-12-06 | 2003-01-15 | British Telecomm | Video quality measurement |
| ATE374979T1 (de) * | 2004-04-13 | 2007-10-15 | Aic | Fraktal-skr-verfahren zur auswertung der bildqualität |
| US7916173B2 (en) * | 2004-06-22 | 2011-03-29 | Canon Kabushiki Kaisha | Method for detecting and selecting good quality image frames from video |
| JP4564986B2 (ja) * | 2006-06-28 | 2010-10-20 | 株式会社リコー | 画像処理装置、画像処理方法及び画像処理プログラム |
| US20110199633A1 (en) * | 2010-02-17 | 2011-08-18 | Nguyen Uoc H | Halftone bit depth dependent digital image compression |
| CN102263985B (zh) * | 2011-07-25 | 2013-06-05 | 深圳展景世纪科技有限公司 | 一种立体投影设备的质量评价方法、装置及系统 |
| JP5507515B2 (ja) | 2011-09-14 | 2014-05-28 | 富士フイルム株式会社 | 非可逆圧縮装置およびその動作制御方法ならびにその動作制御プログラム |
| TWI502999B (zh) * | 2012-12-07 | 2015-10-01 | Acer Inc | 影像處理方法及應用該方法之電子裝置 |
| JP2021175035A (ja) * | 2020-04-21 | 2021-11-01 | キヤノン株式会社 | 画像処理装置、画像処理方法 |
| CN113420612B (zh) * | 2021-06-02 | 2022-03-18 | 深圳中集智能科技有限公司 | 基于机器视觉的生产节拍计算方法 |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5309526A (en) * | 1989-05-04 | 1994-05-03 | At&T Bell Laboratories | Image processing system |
| US5121216A (en) * | 1989-07-19 | 1992-06-09 | Bell Communications Research | Adaptive transform coding of still images |
| EP0789494B1 (en) * | 1989-12-25 | 2002-04-10 | Mitsubishi Denki Kabushiki Kaisha | Coding apparatus |
| KR960010392B1 (ko) * | 1990-09-29 | 1996-07-31 | 니뽕 빅터 가부시끼가이샤 | 적응 양자화를 이용한 화상 신호 부호화 복호화 장치 |
| US5249053A (en) * | 1991-02-05 | 1993-09-28 | Dycam Inc. | Filmless digital camera with selective image compression |
| JPH04323960A (ja) * | 1991-04-23 | 1992-11-13 | Canon Inc | 画像符号化装置 |
| DE69225859T2 (de) * | 1991-10-02 | 1998-12-03 | Matsushita Electric Ind Co Ltd | Orthogonaltransformationskodierer |
| EP0630544B1 (de) * | 1992-03-09 | 1997-05-21 | Siemens Aktiengesellschaft | Verfahren zur bildadaptiven regelung der länge eines quantisierungsintervalls bei der bilddatenreduktion |
| US5440344A (en) * | 1992-04-28 | 1995-08-08 | Mitsubishi Denki Kabushiki Kaisha | Video encoder using adjacent pixel difference for quantizer control |
| US5329379A (en) * | 1992-10-22 | 1994-07-12 | International Business Machines Corporation | System and method of measuring fidelity of decompressed video signals and images |
| JPH06165148A (ja) * | 1992-11-17 | 1994-06-10 | Nippon Telegr & Teleph Corp <Ntt> | 動画像通信装置 |
| JP3200200B2 (ja) * | 1992-11-18 | 2001-08-20 | 株式会社リコー | 画像符号化制御方法 |
| JPH07135671A (ja) * | 1993-11-12 | 1995-05-23 | Matsushita Electric Ind Co Ltd | 直交変換符号化装置 |
| JP3427454B2 (ja) * | 1993-12-21 | 2003-07-14 | 株式会社ニコン | スチルカメラ |
| US5426512A (en) * | 1994-01-25 | 1995-06-20 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Image data compression having minimum perceptual error |
| US5654760A (en) * | 1994-03-30 | 1997-08-05 | Sony Corporation | Selection of quantization step size in accordance with predicted quantization noise |
| US5677969A (en) * | 1995-02-23 | 1997-10-14 | Motorola, Inc. | Method, rate controller, and system for preventing overflow and underflow of a decoder buffer in a video compression system |
| JP3431331B2 (ja) * | 1995-03-01 | 2003-07-28 | 株式会社日立製作所 | 動画像符号化装置及び動画像伝送装置並びにテレビ会議装置 |
| US5799110A (en) * | 1995-11-09 | 1998-08-25 | Utah State University Foundation | Hierarchical adaptive multistage vector quantization |
-
1996
- 1996-08-29 JP JP22913896A patent/JP3116994B2/ja not_active Expired - Fee Related
-
1997
- 1997-08-15 US US08/912,112 patent/US5991458A/en not_active Expired - Lifetime
- 1997-08-20 DE DE1997637129 patent/DE69737129T2/de not_active Expired - Lifetime
- 1997-08-20 EP EP20030008008 patent/EP1341384B1/en not_active Expired - Lifetime
- 1997-08-20 EP EP19970114380 patent/EP0827346B1/en not_active Expired - Lifetime
- 1997-08-20 DE DE1997631344 patent/DE69731344T2/de not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| EP0827346A2 (en) | 1998-03-04 |
| JP3116994B2 (ja) | 2000-12-11 |
| EP1341384A1 (en) | 2003-09-03 |
| DE69731344T2 (de) | 2005-03-17 |
| DE69731344D1 (de) | 2004-12-02 |
| JPH1075369A (ja) | 1998-03-17 |
| EP0827346A3 (en) | 2001-01-10 |
| EP0827346B1 (en) | 2004-10-27 |
| DE69737129D1 (de) | 2007-02-01 |
| EP1341384B1 (en) | 2006-12-20 |
| US5991458A (en) | 1999-11-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69737129T2 (de) | Verfahren und Vorrichtung zur Bildqualitätskontrolle | |
| DE69825836T2 (de) | Bildkodierungsvorrichtung und -verfahren sowie Bildaufzeichnungsmedium | |
| DE3636675C2 (ja) | ||
| DE69737247T2 (de) | Bildklassifikationssystem mit Fuzzy-Logik | |
| DE69735083T2 (de) | Bildverarbeitungssystem und -verfahren | |
| DE3224319C2 (de) | Verfahren und Einrichtung zum Bestimmen der Art der Schwärzungsgradpegelverteilung einer Bildfläche | |
| DE69919641T2 (de) | Adaptive Videokompromierung mit variabler Quantisierung | |
| DE69937785T2 (de) | Verfahren zur Selektion von Farbblockpunkten für die Blockkodierung | |
| DE69825196T2 (de) | Bildverarbeitungsverfahren und -vorrichtung | |
| EP0283715B1 (de) | Verfahren zur Codierung von Bildsignalen | |
| DE69813349T2 (de) | Vorrichtung zur Kontrolle der Datenmenge und Kodierer dieselbige anwendend | |
| EP0201679A1 (de) | Verfahren zur Bilddatenreduktion für digitale Fernsehsignale | |
| DE19739266B4 (de) | Verfahren und Vorrichtung zum Kodieren binärer Formen | |
| DE69837361T2 (de) | Verfahren und Vorrichtung zur Bildkodierung | |
| DE69736878T2 (de) | Verfahren zur Umsetzung von Farbdaten | |
| DE3208859C2 (ja) | ||
| DE2740945A1 (de) | Verfahren zum uebertragen von bildsignalen mit hilfe der differenz-puls- code-modulation (dpcm) und gesteuertem quantisierer | |
| DE69728724T2 (de) | Bildbereichs-Erkennungsverfahren und Bildverarbeitungsvorrichtung | |
| DE19737805A1 (de) | Verfahren und Vorrichtung zum Kodieren eines Bewegungsvektors | |
| DE69534054T2 (de) | Verfahren und Vorrichtung zur Bilddatenkompression | |
| DE69631636T2 (de) | Verfahren zur perspektivischen Projektionsumsetzung | |
| DE60127554T2 (de) | Verfahren und vorrichtung für videokodierung mit rekursiver bewegungskompensierter filterung | |
| EP1374559B1 (de) | Verfahren zur komprimierung und dekomprimierung von bilddaten | |
| EP0042981B1 (de) | Verfahren zur Codierung von elektrischen Signalen, die bei der Abtastung eines grafischen Musters mit aus Text und Bildern gemischtem Inhalt gewonnen werden | |
| DE69636273T2 (de) | Bewegtbildcodiervorrichtung, Bewegtbilddecodiervorrichtung und Bewegtbildcodier-/-Decodiervorrichtung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8364 | No opposition during term of opposition |